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Why is statistical significance not necessarily of practical

Why is statistical significance not necessarily of practical important difference to a business decision? Provide an example and explain. Why do statisticians play only a limited role in deciding whet… read more

3. Records of randomly selected births were obtained and categorized

3. Records of randomly selected births were obtained and categorized according to the day of the week that they occurred (based on data from the National Center for Health Statistics). Because babies … read more

3. Records of randomly selected births were obtained and categorized

3. Records of randomly selected births were obtained and categorized according to the day of the week that they occurred (based on data from the National Center for Health Statistics). Because babies … read more

1) When every member of a population has the chance of being

1) When every member of a population has the chance of being selected based on the probability, or frequency, of its representation in that population, you are using which type of sampling? A. Random … read more

Identify whether the statement describes inferential statistics

Identify whether the statement describes inferential statistics or descriptive statistics. The average age of the students in a statistics class is 22 years. Does this statement describe: inferential … read more

3. Assume that the data has a normal distribution. Also assume

3. Assume that the data has a normal distribution. Also assume that the standard deviation of the population, sigma, is known. Find the critical value(s) used to test a null hypothesis: level of signi… read more

At a university with 1,000 business majors, there are 200 business

At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course. Of these 200 students, 50 are also enrolled in an introductory accounting cou… read more

When would you use descriptive over inferential statistics

When would you use descriptive over inferential statistics? Provide a specific scenario and explain your rationale.… read more

1) Write down the steps of a hypothesis testing for the research

1) Write down the steps of a hypothesis testing for the research question: “Whether the mean body-weight in this population is 150 lb?” Use SPSS to obtain the value of the test statistic and p-value. … read more

Help Help Help.....please........ The data below shows the

Help Help Help.....please........ The data below shows the frequency distribution for 200 test scores. Find the critical value and test statistic that would be used to test for a normal distrubtion fo… read more

1. Suppose you want to test the claim that mu 25.6. Given

1. Suppose you want to test the claim that mu > 25.6. Given a sample size of n = 42 and a level of significance of alfa = 0.1, when should you reject H with subscript((0))? Reject H with subscript(… read more

Any Math Expert! Please help with this math/statistics question

Any Math Expert! Please help with this math/statistics question Due today by 9pm Answer should be at least 200 words! Will add nice bonus for a quick response! How have software packages made statisti… read more

6. T F The calculation for obtaining a t test statistic is

6. T F The calculation for obtaining a t test statistic is the same as that for a z test statistic except that the population standard deviation is replaced by the sample standard deviation. 7. T F Be… read more

1) You asked ten of your classmates about their weight. On

1) You asked ten of your classmates about their weight. On the basis of this information, you stated that the average weight of all students in your university or college is 145 pounds. This is an exa… read more

Laymen often have a distrust of statistics is this justified

Laymen often have a distrust of statistics is this justified? If so, what can we do to give statistics a better name? If someone told you that statistics is a bunch of worthless lies and what could yo… read more

Determine the decision criterion for rejecting the null hypothesis

Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. … read more

1-Can the formal hypothesis testing approach be used for nonparametric

1-Can the formal hypothesis testing approach be used for nonparametric tests? How are parametric and nonparametric statistics different? How are parametric and nonparametric statistics similar? 2-Unde… read more

Scott or Gregf...http //www.mediafire.com/ wxjm30w303o

Scott or Greg, can you please help me? Need this asap. .http://www.mediafire.com/?wxjm30w303o ....Need ASAP...300 words in a section of paper I am having a problem with.… read more

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